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Conversion disorder

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896:, after studying the condition in the 1950s, stated: "The diagnosis of 'hysteria' is all too often a way of avoiding a confrontation with our own ignorance. This is especially dangerous when there is an underlying organic pathology, not yet recognised. In this penumbra we find patients who know themselves to be ill but, coming up against the blank faces of doctors who refuse to believe in the reality of their illness, proceed by way of emotional lability, overstatement and demands for attention 416: 900:... Here is an area where catastrophic errors can be made. In fact it is often possible to recognise the presence though not the nature of the unrecognisable, to know that a man must be ill or in pain when all the tests are negative. But it is only possible to those who come to their task in a spirit of humility. In the main the diagnosis of 'hysteria' applies to a disorder of the doctor–patient relationship. It is evidence of non-communication, of a mutual misunderstanding 760:
could be done by placing malodorous and acrid substances near the woman's mouth and nostrils, while scented ones were placed near her vagina; on the contrary, if the uterus had lowered, the document recommends placing the acrid substances near her vagina and the perfumed ones near her mouth and nostrils."
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of unexplained symptoms among new patients is very high, between 30 and 60%. However, diagnosis of conversion disorder typically requires an additional psychiatric evaluation, and since few patients will see a psychiatrist, it is unclear what proportion of the unexplained symptoms are actually due to
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for conversion disorder varies widely, with some cases resolving in weeks, and others enduring for years or decades. There is also evidence that there is no cure for conversion disorder, and that although patients may go into remission they can relapse at any point. Many patients can get rid of their
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Educating patients on the causes of their symptoms might help them learn to manage both the psychiatric and physical aspects of their condition. Psychological counseling is often warranted given the known relationship between conversion disorder and emotional trauma. This approach ideally takes place
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demonstrated that misdiagnoses had occurred in one third of his 112 patients with conversion disorder. Later authors have argued that the paper was flawed. A 2005 meta-analysis has shown that misdiagnosis rates since that paper was published are around four percent, the same as for other neurological
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explanation for conversion disorder is that the symptoms may have been evolutionarily advantageous during warfare. A non-combatant with these symptoms signals non-verbally, possibly to someone speaking a different language, that she or he is not dangerous as a combatant and also may be carrying some
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Although it is often thought that the frequency of conversion may be higher outside of the West, perhaps in relation to cultural and medical attitudes, evidence of this is limited. A 2007 community survey of urban Turkey found a prevalence of 5.6%. Many authors have found occurrence of conversion to
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In excluding neurological disease, the neurologist has traditionally relied partly on the presence of positive signs of conversion disorder, i.e. certain aspects of the presentation that were thought to be rare in neurological disease but common in conversion. The validity of many of these signs has
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Conversion symptoms typically do not conform to known anatomical pathways and physiological mechanisms. It has sometimes been stated that the presenting symptoms tend to reflect the patient's own understanding of anatomy and that the less medical knowledge a person has, the more implausible are the
302:. These symptoms are attributed to conversion disorder when a medical explanation for the conditions cannot be found. Symptoms of conversion disorder usually occur suddenly. Conversion disorder is typically seen in people aged 10 to 35, and affects between 0.011% and 0.5% of the general population. 935:
model. A number of such studies have been performed, including some which suggest the blood-flow in patients' brains may be abnormal while they are unwell. The studies have all been too small to be confident of the generalisability of their findings, so no neuropsychological model has been clearly
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The first evidence of conversion disorder dates back to 1900 B.C., when the symptoms were blamed on the uterus moving within the female body. The treatment varied "depending on the position of the uterus, which must be forced to return to its natural position. If the uterus had moved upwards, this
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The psychological mechanism of conversion can be the most difficult aspect of a conversion diagnosis. Even if there is a clear antecedent trauma or other possible psychological trigger, it is still not clear exactly how this gives rise to the symptoms observed. Patients with medically unexplained
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referred to the condition as both hysteria and conversion disorder throughout his career. He believed those with the condition could not live in a mature relationship, and that those with the condition were unwell in order to achieve a "secondary gain", in that they are able to manipulate their
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Some support for the Freudian model comes from findings of high rates of childhood sexual abuse in conversion patients. Support for the dissociation model comes from studies showing heightened suggestibility in patients with conversion disorder. Critics argue that it can be challenging to find
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Freud's model suggested the emotional charge deriving from painful experiences would be consciously repressed as a way of managing the pain, but that the emotional charge would be somehow "converted" into neurological symptoms. Freud later argued that the repressed experiences were of a sexual
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Another feature thought to be important was that symptoms tended to be more severe on the non-dominant, usually left side of the body. There have been a number of theories about this, such as the relative involvement of cerebral hemispheres in emotional processing, or more simply, that it was
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While conversion symptoms are not a normal responses to stress, taking measures to better manage psychological stress can help relieve symptoms. Treatments for conversion syndrome include hypnosis, psychotherapy, physical therapy, stress management, and
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presenting symptoms. However, no systematic studies have yet been performed to substantiate this statement. Inconsistent symptoms such as negative lab and imaging results and/or a significant psychiatric disorder are suggestive indicators of
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In recent surveys of conversion disorder, females predominate, with between two and six female patients for every male. Some research suggests however that this gender disparity may be confounded by higher rates of violence against women.
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neurological symptoms may not have any psychological stressor, hence the use of the term "functional neurologic symptom disorder" in DSM-5 as opposed to "conversion disorder", and DSM-5's removal of the need for a psychological trigger.
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The onset of conversion disorder often correlates to a traumatic or stressful event. There are certain populations that are considered at risk for conversion disorder, including people with a medical illness or condition, people with
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organic pathologies for all symptoms, and so the practice of diagnosing patients with such symptoms as having hysteria led to the disorder being meaningless, vague and a sham diagnosis, as it does not refer to any definable disease.
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From the 13th century, women with hysteria were exorcised, as it was believed that they were possessed by the devil. It was believed that if doctors could not find the cause of a disease or illness, it must be caused by the devil.
2870:"Human brain evolution and the "Neuroevolutionary Time-depth Principle:" Implications for the Reclassification of fear-circuitry-related traits in DSM-V and for studying resilience to warzone-related posttraumatic stress disorder" 2416:
Kletenik I, Holden SK, Sillau SH, O'Connell N, MacGillivray L, Mack J, Haddock B, Ashworth Dirac M, David AS, Nicholson TR, Attaripour Isfahani SN, Maurer CW, Lidstone SC, Hallett M, LaFaver K, Berman BD, Stone J (January 2022).
547:. The neurologist must carefully exclude neurological disease, through examination and appropriate investigations. However, it is not uncommon for patients with neurological disease to also have conversion disorder. 2953: 2938: 724:
of 22 and 11 newly diagnosed cases per 100,000 person-years, respectively. In 2002, some estimates claim that in the general population, between 0.011% and 0.5% of the population have conversion disorder.
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Snijders TJ, de Leeuw FE, Klumpers UM, Kappelle LJ, van Gijn J (2004). "Prevalence and predictors of unexplained neurological symptoms in an academic neurology outpatient clinic—an observational study".
948:. This can explain that conversion disorder may develop following a threatening situation, that there may be a group effect with many people simultaneously developing similar symptoms, as in 835:
During the 18th century, there was a move from the idea of hysteria being caused by the uterus to it being caused by the brain. This led to an understanding that it could affect both sexes.
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Ron M, "The Prognosis of Hysteria" In P. Halligan, C. Bass, J. Marshall (Eds.) Hysterical Conversion: clinical and theoretical perspectives (pp. 73–87). Oxford: Oxford University Press.
871:. In this hypothetical process, the subject's experience of their leg, for example, is split off from the rest of their consciousness, resulting in paralysis or numbness in that leg. 2236:
Deveci A, Taskin O, Dinc G, Yilmaz H, Demet MM, Erbay-Dundar P, Kaya E, Ozmen E (2007). "Prevalence of pseudoneurologic conversion disorder in an urban community in Manisa, Turkey".
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argued that "dissociation appears autonomously for neurotic reasons, and in such a way as to adversely disturb the individual's everyday life". As early as 1874, doctors including
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be more frequent in rural, lower socio-economic groups, where technological investigation of patients is limited and people may know less about medical and psychological concepts.
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believed polluted water and fumes caused the symptoms of hysteria. Towards the end of the century, the role of the uterus was no longer thought central to the disorder, with
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The symptom or deficit causes clinically significant distress or impairment in social, occupational, or other important areas of functioning or warrants medical evaluation.
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treatment may possibly be helpful. Most studies assessing the efficacy of these treatments are of poor quality and larger, better controlled studies are urgently needed.
798:, such as paralysis and blindness, were actually forms of conversion disorder. He describes Jesus as a "village psychiatrist", who believed that his words had power. 908:... Evasions, even untruths, on the doctor's side are among the most powerful and frequently used methods he has for bringing about an efflorescence of 'hysteria'". 3525: 555:, described in DSM-IV as "a relative lack of concern about the nature or implications of the symptoms". In a 2006 study, no evidence was found that patients with 2322:
Kuloglu M, Atmaca M, Tezcan E, Gecici O, Bulut S (2003). "Sociodemographic and clinical characteristics of patients with conversion disorder in Eastern Turkey".
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led to the uterus producing toxic fumes, causing it to move in the body. Therefore, he argued, all women should be married and enjoy a satisfactory sexual life.
867:, a highly noted psychologist during the early 20th century, argued that symptoms arose through the power of suggestion, acting on a personality vulnerable to 609:. Treatment plans will consider duration and presentation of symptoms and may include one or multiple of the above treatments. This may include the following: 184:
It is thought that these symptoms arise in response to stressful situations affecting a patient's mental health or an ongoing mental health condition such as
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Conversion disorder may present at any age, but is rare in children younger than ten or in the elderly. Studies suggest a peak onset in the mid-to-late 30s.
567:"easier" to live with a functional deficit on the non-dominant side. However, a literature review of 121 studies established that this was not true, with 571:
the most likely explanation for this commonly held view. Although agitation is often assumed to be a positive sign of conversion disorder, release of
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Crimlisk HL, Bhatia KP, Cope H, David AS, Marsden D, Ron MA (2000). "Patterns of referral in patients with medically unexplained motor symptoms".
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to study conversion. As researchers identify the mechanisms which underlie conversion symptoms, it is hoped they will enable the development of a
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nature. As Peter Halligan comments, conversion has "the doubtful distinction among psychiatric diagnoses of still invoking Freudian mechanisms".
635: 287:, and difficulty walking. The symptom of feeling unable to breathe, but where the lips are not turning blue, can indicate conversion disorder or 878:
Throughout its history, many patients have been misdiagnosed with hysteria or conversion disorder when they had organic disorders such as
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Stefánsson JG, Messina JA, Meyerowitz S (1976). "Hysterical neurosis, conversion type: clinical and epidemiological considerations".
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In the 19th century, hysteria moved from being considered a neurological disorder to being considered a psychological disorder, when
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Tomasson K, Kent D, Coryell W (1991). "Somatization and conversion disorders: comorbidity and demographics at presentation".
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Akagi, H. & House, A.O., 2001, "The epidemiology of hysterical conversion". In P. Halligan, C. Bass, J. Marshall (Eds.)
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Clinical findings provide evidence of incompatibility between the symptom and recognised neurological or medical conditions.
2009:"Do medically unexplained symptoms matter? A prospective cohort study of 300 new referrals to neurology outpatient clinics" 767:, a similarly described condition, was thought to be caused by a lack of orgasms, uterine melancholy, and not procreating. 779:
believed that a lack of sex causes complications in the uterus. Many Greeks believed it could be prevented and cured with
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Nimnuan C, Hotopf M, Wessely S (2001). "Medically unexplained symptoms: an epidemiological study in seven specialities".
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argued that the symptoms of hysteria may have an organic cause. He also proved the uterus is not the cause of symptoms.
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argued that hysteria was caused by "a hereditary degeneration of the nervous system, namely a neurological disorder".
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and J. A. Omerod began to speak out against the hysteria phenomenon as there was no evidence to prove its existence.
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At the beginning of the 16th century, women were sexually stimulated by midwives in order to relieve their symptoms.
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been questioned by a study showing that they also occur in neurological disease. One such symptom, for example, is
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are also symptoms of conversion disorder, but if a patient only has these symptoms, they should be diagnosed with
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Ganslev, Christina A.; Storebø, Ole Jakob; Callesen, Henriette E.; Ruddy, Rachel; Søgaard, Ulf (July 17, 2020).
219:(FND). FND covers the same range of symptoms as FNsD, but does not include the requirements for a psychological 4032: 3817: 3788: 3049: 972: 966: 576: 540: 424: 381: 223:
to be present. The new criteria no longer requires feigning to be disproven before diagnosing FND or FNsD. The
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is limited, in part due to the complexities of the diagnostic process. In neurology clinics, the reported
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Conversion disorder presents symptoms following exposure to a certain stressor, typically associated with
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Kletenik, I; Sillau, SH; Attaripour Isfahani, S; LaFaver, K; Hallett, M; Berman, BD (November 29, 2019).
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situation to fit their needs or desires. He also found that both men and women could have the disorder.
384:. Although the clinician should still exclude any other organic disorders through thorough examination. 247:. Usually, the physical symptoms of the syndrome affect the senses or movement. Common symptoms include 4216: 3131: 1155:
Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition, American Psychiatric Association
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have yet been found to support the idea that conversion disorder is caused by a psychiatric condition.
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Gould R, Miller BL, Goldberg MA, Benson DF (1986). "The validity of hysterical signs and symptoms".
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Weakness/paralysis of a limb or the entire body (hysterical paralysis or motor conversion disorders)
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Conversion disorder presents with symptoms that typically resemble a neurological disorder such as
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With special sensory loss symptoms (e.g. visual blindness, olfactory loss, or hearing disturbance)
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Slater ET, Glithero E (1965). "A follow-up of patients diagnosed as suffering from "hysteria"".
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Conversion disorder can present with motor or sensory symptoms including any of the following:
244: 228: 188:. Individuals diagnosed with conversion disorder have a greater chance of experiencing certain 3008: 2489:
Tasca, Cecilia; Rapetti, Mariangela; Carta, Mauro Giovanni; Fadda, Bianca (October 19, 2012).
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are any more likely to exhibit this than patients with a confirmed organic disease. In DSM-V,
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The diagnostic criteria for functional neurologic symptom disorder, as set out in DSM-5, are:
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There is little evidence-based treatment of conversion disorder. Other treatments such as
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the disorder. In 1976, large scale psychiatric registers in the U.S. and Iceland found
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discovering that the brain and central nervous system were the cause of the symptoms.
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that causes abnormal sensory experiences and movement problems during periods of high
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Mace, CJ; Trimble, MR (September 1996). "Ten-year prognosis of conversion disorder".
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The symptom or deficit is not better explained by another medical or mental disorder.
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The patient has at least one symptom of altered voluntary motor or sensory function.
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Tollison, C. David; Satterthwaite, John R.; Tollison, Joseph W. (January 1, 2002).
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Misdiagnosis does sometimes occur. In a highly influential study from the 1960s,
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Stone J, Sharpe M, Carson A, Lewis SC, Thomas B, Goldbeck R, Warlow CP (2002).
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Roelofs K, Hoogduin KA, Keijsers GP, Näring GW, Moene FC, Sandijck P (2002).
2514: 1831: 1744: 1327: 853: 814: 712: 399: 2947: 1580: 1376: 904:... We are, often, unwilling to tell the full truth or to admit to ignorance 427:(FNsD). In cases of conversion disorder, there is a psychological stressor. 415: 3987: 3768: 3320: 2906: 2800: 2740: 2673: 2532: 2452: 2402: 2343: 2257: 2156: 2113: 2077: 2042: 1898: 1849: 1762: 1682: 1598: 1527: 1478: 1345: 1241: 1208: 1052: 1019: 893: 864: 843: 646:
may help reduce stress and also relieve or prevent symptoms from occurring.
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Stern, Theodore A.; Fricchione, Gregory L.; Rosenbaum, Jerrold F. (2010).
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Dissociative neurological symptom disorder, with unspecified symptoms ".
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Carson AJ, Ringbauer B, Stone J, McKenzie L, Warlow C, Sharpe M (2000).
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Massachusetts General Hospital Handbook of General Hospital Psychiatry
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Diagnostic category used in some psychiatric classification systems
2829:"Sigmund Freud: hysteria, somatization, medicine and misdiagnosis" 1955:
Couprie, W; Wijdicks, EF; Rooijmans, HG; van Gijn, J (June 1995).
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Roelofs K, Keijsers GP, Hoogduin KA, Näring GW, Moene FC (2002).
2415: 1119: 682:(CBT) is the most common treatment, with a 13% improvement rate. 319: 174: 2090: 1954: 3695: 3510: 2942: 528: 284: 224: 67: 2877:
Progress in Neuro-Psychopharmacology and Biological Psychiatry
2764:"Hypnotic susceptibility in patients with conversion disorder" 4132: 3473: 2761: 2701: 1167: 828:, there was a reported outbreak of hysteria. This led to the 768: 423:
Conversion disorder is now contained under the umbrella term
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Hysterical Conversion: clinical and theoretical perspectives
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Information on the frequency of conversion disorder in the
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Acute episode: symptoms present for less than six months
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Analysis of Conversion Disorder in Symptomatic Patients
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Stone J, Smyth R, Carson A, Warlow C, Sharpe M (2006).
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Dissociative neurological with unspecified symptoms ".
2704:"Childhood abuse in patients with conversion disorder" 2488: 2235: 2213: 1649:"Eliot Slater's myth of the non-existence of hysteria" 1491: 1450: 1113: 1086: 153:. Individuals with CD present with highly distressing 3064: 2920: 2491:"Women And Hysteria In The History Of Mental Health" 2055: 1865:"Conversion disorder: advances in our understanding" 1708:. Mayo Foundation for Medical Education and Research 522: 501:
Persistent: symptoms present for six months or more.
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Clinical Practice and Epidemiology in Mental Health
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to maintain autonomy in activities of daily living.
173:, which are not consistent with a well-established 3082: 1961:Journal of Neurology, Neurosurgery, and Psychiatry 1228:Peeling, Jessica L.; Muzio, Maria Rosaria (2024), 1195:Peeling, Jessica L.; Muzio, Maria Rosaria (2023), 1039:Peeling, Jessica L.; Muzio, Maria Rosaria (2024), 1006:Peeling, Jessica L.; Muzio, Maria Rosaria (2024), 1726: 1309: 4306: 3491: 2637: 2484: 2482: 2480: 2478: 2476: 2474: 2472: 2470: 698:symptoms with time, treatments and reassurance. 1236:, Treasure Island (FL): StatPearls Publishing, 1203:, Treasure Island (FL): StatPearls Publishing, 1047:, Treasure Island (FL): StatPearls Publishing, 1014:, Treasure Island (FL): StatPearls Publishing, 575:is a well-demonstrated cause of paralysis from 4264: 2002: 2000: 1729:"Functional symptoms in neurology: management" 1647:Stone J, Warlow C, Carson A, Sharpe M (2005). 1611: 375:Loss or disturbance of touch or pain sensation 3050: 2625:Fragment of an analysis of a case of hysteria 2467: 2223:(pp. 73–87). Oxford: Oxford University Press. 2170: 2168: 2166: 1305: 1303: 927:There has been much recent interest in using 2835:. Archived from the original on May 11, 2004 2755: 2695: 2631: 2577:. Archived from the original on May 11, 2004 2315: 2128: 2084: 2049: 1720: 1556: 1485: 1444: 1265:(6th ed.). Elsevier. pp. 211–236. 1227: 1194: 1038: 1005: 787:. Hippocrates argued that a lack of regular 636:serotonin–norepinephrine reuptake inhibitors 511:Psychological stressor (conversion disorder) 2548:"Jesus the village psychiatrist: a summary" 2272: 1997: 1911: 1862: 1812:The Cochrane Database of Systematic Reviews 1777:"Conversion Disorder | Doctors of USC" 1605: 1401: 1352: 952:, and the gender difference in prevalence. 3954:Other specified feeding or eating disorder 3221: 3057: 3043: 2603: 2163: 1640: 1300: 1287:"Conversion and somatic symptom disorders" 1163: 1161: 590: 2896: 2867: 2790: 2730: 2663: 2522: 2442: 2392: 2382: 2231: 2229: 2032: 1980: 1888: 1839: 1752: 1672: 1588: 1517: 1468: 1384: 1335: 638:(SNRIs), a class of antidepressants, and 318:Impairment or loss of speech (hysterical 4217:Disorganized (hebephrenic) schizophrenia 3813:Depersonalization-derealization disorder 1562: 1108:International Classification of Diseases 1081:International Classification of Diseases 414: 329:) or a sensation of a lump in the throat 231:with unspecified neurological symptoms. 211:Conversion disorder was retained in the 2686: 2640:"New approaches to conversion hysteria" 2622: 2562: 1358: 1158: 563:was removed as a diagnostic criterion. 4307: 2822: 2820: 2818: 2226: 977:Complex post-traumatic stress disorder 794:Donald Capps argues that the diseases 516:functional neurologic symptom disorder 450:Specify type of symptom or deficit as: 425:functional neurologic symptom disorder 139:functional neurologic symptom disorder 4263: 4131: 4066: 3918: 3645: 3490: 3400: 3220: 3081: 3038: 2638:Halligan PW, Bass C, Wade DT (2000). 2545: 1174:. Lippincott Williams & Wilkins. 1151: 1149: 458:With abnormal movement (e.g. tremor, 234: 3401: 2371:Movement Disorders Clinical Practice 1727:Stone J, Carson A, Sharpe M (2005). 1698: 1310:Stone J, Carson A, Sharpe M (2005). 227:classifies conversion disorder as a 3920:Physiological and physical behavior 2826: 2815: 2568: 631:alongside other types of treatment. 13: 3866:Psychogenic non-epileptic seizures 3260:Emotional and behavioral disorders 2609:Josef Breuer & Sigmund Freud, 2324:Soc Psychiatry Psychiatr Epidemiol 2293:10.1111/j.1600-0447.1991.tb03146.x 2238:Soc Psychiatry Psychiatr Epidemiol 2191:10.1111/j.1600-0447.1976.tb00066.x 1146: 336:Psychogenic non-epileptic seizures 14: 4336: 4046:Hypoactive sexual desire disorder 2916: 1914:The British Journal of Psychiatry 1361:"Hysteria following brain injury" 607:transcranial magnetic stimulation 523:Exclusion of neurological disease 204:compared to those diagnosed with 3346:X-linked intellectual disability 2013:J. Neurol. Neurosurg. Psychiatry 1733:J. Neurol. Neurosurg. Psychiatry 1498:J. Neurol. Neurosurg. Psychiatry 1422:10.1097/00005053-198610000-00003 1365:J. Neurol. Neurosurg. Psychiatry 1316:J. Neurol. Neurosurg. Psychiatry 1230:"Functional Neurologic Disorder" 1041:"Functional Neurologic Disorder" 1008:"Functional Neurologic Disorder" 962:Body-centred countertransference 361:Loss of consciousness (fainting) 312:Impaired coordination or balance 3175:Intermittent explosive disorder 3100:Ego-dystonic sexual orientation 2861: 2680: 2616: 2539: 2409: 2358: 1948: 1905: 1856: 1799: 1769: 1689: 1534: 1279: 1254: 701: 3818:Dissociative identity disorder 3083:Adult personality and behavior 2689:The Major Symptoms of Hysteria 1824:10.1002/14651858.CD005331.pub3 1221: 1188: 1032: 999: 973:Post-traumatic stress disorder 967:Functional neurologic disorder 577:hypokalemic periodic paralysis 541:hypokalemic periodic paralysis 382:functional neurologic disorder 369:Impaired vision, double vision 365:Sensory symptoms or deficits: 217:functional neurologic disorder 1: 2149:10.1016/s0022-3999(00)00167-7 2070:10.1016/s0022-3999(01)00223-9 1110:, eleventh revision – ICD-11 1083:, eleventh revision – ICD-11 993: 824:In 1692, in the U.S. town of 410: 4222:Pseudoneurotic schizophrenia 3759:Generalized anxiety disorder 3492:Neurological and symptomatic 3137:Sexual relationship disorder 2723:10.1176/appi.ajp.159.11.1908 1626:10.1016/0022-3999(65)90004-8 706: 685: 680:Cognitive behavioral therapy 652:cognitive behavioral therapy 599: 405: 308:Motor symptoms or deficits: 177:and can be traced back to a 111:Cognitive behavioral therapy 7: 3998:REM sleep behavior disorder 3467:Seasonal affective disorder 3265:Separation anxiety disorder 2889:10.1016/j.pnpbp.2006.01.008 2783:10.1037/0021-843x.111.2.390 2507:10.2174/1745017901208010110 955: 664:psychodynamic psychotherapy 514:No psychological stressor ( 482:With amnesia or memory loss 472:With speech symptoms (e.g. 351:or other movement disorders 10: 4341: 4315:Disorders causing seizures 4265:Symptoms and uncategorized 3366:developmental disabilities 3132:Sexual maturation disorder 2435:10.1007/s00415-021-10943-6 1665:10.1177/014107680509801214 1544:. Uni-ulm.de. June 5, 2009 754: 728: 455:With weakness or paralysis 4325:Somatic symptom disorders 4270: 4259: 4235: 4227:Simple-type schizophrenia 4204: 4196:Schizophreniform disorder 4173: 4152: 4148: 4127: 4080: 4062: 4031: 4008: 3962: 3929: 3925: 3914: 3836: 3803: 3751: 3694: 3685: 3666: 3662: 3641: 3607: 3574:Mild cognitive impairment 3559:Creutzfeldt–Jakob disease 3539: 3501: 3497: 3486: 3457:Major depressive disorder 3410: 3396: 3362:Psychological development 3361: 3336: 3233: 3229: 3216: 3145: 3092: 3088: 3077: 2994: 2924: 2853:: CS1 maint: unfit URL ( 2656:10.1136/bmj.320.7248.1488 2595:: CS1 maint: unfit URL ( 2336:10.1007/s00127-003-0608-5 2250:10.1007/s00127-007-0233-9 2106:10.1007/s00415-004-0273-y 1171:Practical Pain Management 1099:World Health Organization 1072:World Health Organization 737: 106: 93: 45: 29: 24: 4320:Mass psychogenic illness 4275:Impulse-control disorder 4191:Schizoaffective disorder 4186:Brief reactive psychosis 3883:Mass psychogenic illness 3846:Body dysmorphic disorder 3625:Post-concussion syndrome 3235:Emotional and behavioral 1745:10.1136/jnnp.2004.061663 1328:10.1136/jnnp.2004.061655 983:Somatic symptom disorder 950:mass psychogenic illness 811:Giambattista della Porta 479:With attacks or seizures 469:With swallowing symptoms 4212:Childhood schizophrenia 3564:Frontotemporal dementia 3521:High-functioning autism 3338:Intellectual disability 2558:(1) – via Scielo. 2552:HTS Theological Studies 1581:10.1136/bmj.1.5447.1395 1565:"Diagnosis of Hysteria" 1377:10.1136/jnnp.55.11.1046 941:evolutionary psychology 929:functional neuroimaging 591:Psychological mechanism 325:Difficulty swallowing ( 3729:Specific social phobia 3620:Organic brain syndrome 3462:Melancholic depression 3223:Childhood and learning 2833:www.richardwebster.net 2575:www.richardwebster.net 2546:Capps, Donald (2010). 918:dissociative disorders 796:Jesus allegedly healed 746: 619:Treatment of comorbid 420: 298:can be ruled out with 281:non-epileptic seizures 245:psychological distress 206:neurological disorders 64:non-epileptic seizures 4285:Psychomotor agitation 4075:and substance-related 4018:Postpartum depression 3898:Somatization disorder 3784:Acute stress reaction 3549:AIDS dementia complex 2025:10.1136/jnnp.68.2.207 1973:10.1136/jnnp.58.6.750 1926:10.1192/bjp.169.3.282 1706:"Conversion disorder" 1510:10.1136/jnnp.73.5.578 1470:10.1192/bjp.188.3.204 1197:"Conversion Disorder" 1132:"Conversion disorder" 914:personality disorders 674:need further trials. 561:la belle indiffĂ©rence 553:la belle indiffĂ©rence 418: 269:difficulty swallowing 229:dissociative disorder 202:personality disorders 190:psychiatric disorders 179:psychological trigger 4280:KlĂĽver–Bucy syndrome 4110:Substance dependence 4023:Postpartum psychosis 3569:Huntington's disease 3351:Lujan–Fryns syndrome 3200:Personality disorder 2281:Acta Psychiatr Scand 2178:Acta Psychiatr Scand 1863:Feinstein A (2011). 1781:www.doctorsofusc.com 826:Salem, Massachusetts 763:In Greek mythology, 693:have found that the 634:Medications such as 614:Occupational therapy 488:With mixed symptoms. 396:sexual pain disorder 294:Sleep paralysis and 151:psychological stress 123:occupational therapy 4160:Delusional disorder 4105:Stimulant psychosis 4095:Physical dependence 3949:Rumination syndrome 3851:Conversion disorder 3828:Psychogenic amnesia 3678:with depressed mood 3676:Adjustment disorder 3579:Parkinson's disease 3554:Alzheimer's disease 3447:Atypical depression 3283:Social functioning 3158:Munchausen syndrome 3153:Factitious disorder 2611:Studies in Hysteria 1881:10.1503/cmaj.110490 1739:(Suppl 1): i13–21. 988:Functional disorder 837:Jean-Martin Charcot 557:functional symptoms 251:, partial or total 147:functional disorder 131:Conversion disorder 25:Conversion disorder 4179:schizophrenia-like 3823:Dissociative fugue 3272:Movement disorders 2995:External resources 2868:Bracha HS (2006). 2827:Webster, Richard. 2569:Webster, Richard. 2384:10.1002/mdc3.12863 1787:on August 22, 2008 1410:J. Nerv. Ment. Dis 1322:(Suppl 1): i2–12. 946:infectious disease 944:form of dangerous 933:neuropsychological 830:Salem witch trials 789:sexual intercourse 533:multiple sclerosis 421: 388:Sexual dysfunction 257:inability to speak 235:Signs and symptoms 88:trouble swallowing 4302: 4301: 4298: 4297: 4255: 4254: 4251: 4250: 4123: 4122: 4058: 4057: 4054: 4053: 3910: 3909: 3906: 3905: 3799: 3798: 3637: 3636: 3633: 3632: 3594:Vascular dementia 3516:Asperger syndrome 3482: 3481: 3392: 3391: 3388: 3387: 3326:Tourette syndrome 3212: 3211: 3208: 3207: 3032: 3031: 1563:Slater E (1965). 888:vascular diseases 691:Empirical studies 476:, slurred speech) 332:Urinary retention 157:symptoms such as 128: 127: 60:movement problems 19:Medical condition 4332: 4261: 4260: 4150: 4149: 4129: 4128: 4064: 4063: 3939:Anorexia nervosa 3927: 3926: 3916: 3915: 3893:Psychogenic pain 3861:Globus pharyngis 3709:Childhood phobia 3692: 3691: 3664: 3663: 3643: 3642: 3499: 3498: 3488: 3487: 3398: 3397: 3297:Selective mutism 3248:Conduct disorder 3231: 3230: 3218: 3217: 3195:Trichotillomania 3170:Gender dysphoria 3165:Fear of intimacy 3122:Sexual anhedonia 3090: 3089: 3079: 3078: 3066:Mental disorders 3059: 3052: 3045: 3036: 3035: 2922: 2921: 2911: 2910: 2900: 2874: 2865: 2859: 2858: 2852: 2844: 2842: 2840: 2824: 2813: 2812: 2794: 2771:J Abnorm Psychol 2768: 2759: 2753: 2752: 2734: 2708: 2699: 2693: 2692: 2687:Janet P (1920). 2684: 2678: 2677: 2667: 2650:(7248): 1488–9. 2635: 2629: 2628: 2623:Freud S (1905). 2620: 2614: 2607: 2601: 2600: 2594: 2586: 2584: 2582: 2566: 2560: 2559: 2543: 2537: 2536: 2526: 2486: 2465: 2464: 2446: 2429:(6): 3258–3263. 2413: 2407: 2406: 2396: 2386: 2362: 2356: 2355: 2319: 2313: 2312: 2276: 2270: 2269: 2233: 2224: 2217: 2211: 2210: 2172: 2161: 2160: 2132: 2126: 2125: 2088: 2082: 2081: 2053: 2047: 2046: 2036: 2004: 1995: 1994: 1984: 1952: 1946: 1945: 1909: 1903: 1902: 1892: 1860: 1854: 1853: 1843: 1803: 1797: 1796: 1794: 1792: 1783:. Archived from 1773: 1767: 1766: 1756: 1724: 1718: 1717: 1715: 1713: 1702: 1696: 1693: 1687: 1686: 1676: 1644: 1638: 1637: 1609: 1603: 1602: 1592: 1575:(5447): 1395–9. 1560: 1554: 1553: 1551: 1549: 1538: 1532: 1531: 1521: 1489: 1483: 1482: 1472: 1448: 1442: 1441: 1405: 1399: 1398: 1388: 1359:Eames P (1992). 1356: 1350: 1349: 1339: 1307: 1298: 1297: 1295: 1293: 1283: 1277: 1276: 1258: 1252: 1251: 1250: 1248: 1225: 1219: 1218: 1217: 1215: 1192: 1186: 1185: 1165: 1156: 1153: 1144: 1143: 1141: 1139: 1128: 1117: 1096: 1090: 1069: 1063: 1062: 1061: 1059: 1036: 1030: 1029: 1028: 1026: 1003: 907: 903: 899: 807:Gerolamo Cardano 569:publication bias 466:, gait disorder) 372:Impaired hearing 277:balance problems 80:impaired hearing 76:trouble speaking 22: 21: 4340: 4339: 4335: 4334: 4333: 4331: 4330: 4329: 4305: 4304: 4303: 4294: 4266: 4247: 4231: 4200: 4178: 4169: 4144: 4119: 4076: 4073:substance abuse 4050: 4027: 4004: 3958: 3944:Bulimia nervosa 3921: 3902: 3878:Hypochondriasis 3873:False pregnancy 3856:Ganser syndrome 3838:Somatic symptom 3832: 3795: 3747: 3736:Specific phobia 3681: 3658: 3629: 3603: 3535: 3531:Savant syndrome 3503:Autism spectrum 3493: 3478: 3406: 3384: 3363: 3357: 3332: 3225: 3204: 3180:Dermatillomania 3141: 3127:Sexual anorexia 3084: 3073: 3063: 3033: 3028: 3027: 2990: 2989: 2933: 2919: 2914: 2872: 2866: 2862: 2846: 2845: 2838: 2836: 2825: 2816: 2766: 2760: 2756: 2717:(11): 1908–13. 2711:Am J Psychiatry 2706: 2700: 2696: 2691:(2nd ed.). 2685: 2681: 2636: 2632: 2621: 2617: 2608: 2604: 2588: 2587: 2580: 2578: 2567: 2563: 2544: 2540: 2487: 2468: 2414: 2410: 2363: 2359: 2320: 2316: 2277: 2273: 2234: 2227: 2218: 2214: 2173: 2164: 2137:J Psychosom Res 2133: 2129: 2089: 2085: 2058:J Psychosom Res 2054: 2050: 2005: 1998: 1953: 1949: 1910: 1906: 1861: 1857: 1818:(7): CD005331. 1804: 1800: 1790: 1788: 1775: 1774: 1770: 1725: 1721: 1711: 1709: 1704: 1703: 1699: 1694: 1690: 1645: 1641: 1614:J Psychosom Res 1610: 1606: 1561: 1557: 1547: 1545: 1540: 1539: 1535: 1490: 1486: 1457:Br J Psychiatry 1449: 1445: 1406: 1402: 1371:(11): 1046–53. 1357: 1353: 1308: 1301: 1291: 1289: 1285: 1284: 1280: 1273: 1259: 1255: 1246: 1244: 1226: 1222: 1213: 1211: 1193: 1189: 1182: 1166: 1159: 1154: 1147: 1137: 1135: 1130: 1129: 1120: 1097: 1093: 1070: 1066: 1057: 1055: 1037: 1033: 1024: 1022: 1004: 1000: 996: 958: 905: 901: 897: 848:W. B. Carpenter 819:Thomas Sydenham 757: 749: 740: 731: 722:incidence rates 709: 704: 688: 644:benzodiazepines 602: 593: 525: 447: 413: 408: 354:Gait problems ( 289:sleep paralysis 237: 20: 17: 12: 11: 5: 4338: 4328: 4327: 4322: 4317: 4300: 4299: 4296: 4295: 4293: 4292: 4287: 4282: 4277: 4271: 4268: 4267: 4257: 4256: 4253: 4252: 4249: 4248: 4246: 4245: 4239: 4237: 4233: 4232: 4230: 4229: 4224: 4219: 4214: 4208: 4206: 4202: 4201: 4199: 4198: 4193: 4188: 4182: 4180: 4171: 4170: 4168: 4167: 4162: 4156: 4154: 4146: 4145: 4125: 4124: 4121: 4120: 4118: 4117: 4112: 4107: 4102: 4100:Rebound effect 4097: 4092: 4087: 4081: 4078: 4077: 4060: 4059: 4056: 4055: 4052: 4051: 4049: 4048: 4043: 4041:Hypersexuality 4037: 4035: 4029: 4028: 4026: 4025: 4020: 4014: 4012: 4006: 4005: 4003: 4002: 4001: 4000: 3995: 3990: 3980: 3975: 3969: 3967: 3960: 3959: 3957: 3956: 3951: 3946: 3941: 3935: 3933: 3923: 3922: 3912: 3911: 3908: 3907: 3904: 3903: 3901: 3900: 3895: 3890: 3885: 3880: 3875: 3870: 3869: 3868: 3863: 3858: 3848: 3842: 3840: 3834: 3833: 3831: 3830: 3825: 3820: 3815: 3809: 3807: 3801: 3800: 3797: 3796: 3794: 3793: 3792: 3791: 3786: 3776: 3774:Panic disorder 3771: 3766: 3761: 3755: 3753: 3749: 3748: 3746: 3745: 3744: 3743: 3741:Claustrophobia 3733: 3732: 3731: 3726: 3724:Anthropophobia 3716: 3714:Social anxiety 3711: 3706: 3700: 3698: 3689: 3683: 3682: 3680: 3679: 3672: 3670: 3660: 3659: 3639: 3638: 3635: 3634: 3631: 3630: 3628: 3627: 3622: 3617: 3611: 3609: 3605: 3604: 3602: 3601: 3596: 3591: 3586: 3584:Pick's disease 3581: 3576: 3571: 3566: 3561: 3556: 3551: 3545: 3543: 3537: 3536: 3534: 3533: 3528: 3523: 3518: 3513: 3507: 3505: 3495: 3494: 3484: 3483: 3480: 3479: 3477: 3476: 3471: 3470: 3469: 3464: 3459: 3454: 3449: 3439: 3438: 3437: 3432: 3427: 3422: 3411: 3408: 3407: 3394: 3393: 3390: 3389: 3386: 3385: 3383: 3382: 3377: 3371: 3369: 3359: 3358: 3356: 3355: 3354: 3353: 3342: 3340: 3334: 3333: 3331: 3330: 3329: 3328: 3318: 3317: 3316: 3311: 3301: 3300: 3299: 3294: 3289: 3281: 3280: 3279: 3269: 3268: 3267: 3257: 3256: 3255: 3245: 3239: 3237: 3227: 3226: 3214: 3213: 3210: 3209: 3206: 3205: 3203: 3202: 3197: 3192: 3187: 3182: 3177: 3172: 3167: 3162: 3161: 3160: 3149: 3147: 3143: 3142: 3140: 3139: 3134: 3129: 3124: 3119: 3118: 3117: 3112: 3102: 3096: 3094: 3086: 3085: 3075: 3074: 3070:Classification 3062: 3061: 3054: 3047: 3039: 3030: 3029: 3026: 3025: 3011: 2999: 2998: 2996: 2992: 2991: 2988: 2987: 2976: 2965: 2950: 2934: 2929: 2928: 2926: 2925:Classification 2918: 2917:External links 2915: 2913: 2912: 2883:(5): 827–853. 2860: 2814: 2754: 2694: 2679: 2630: 2615: 2602: 2561: 2538: 2466: 2408: 2377:(2): 177–181. 2357: 2314: 2271: 2244:(11): 857–64. 2225: 2212: 2162: 2127: 2083: 2048: 1996: 1947: 1904: 1855: 1798: 1768: 1719: 1697: 1688: 1639: 1604: 1555: 1533: 1484: 1443: 1400: 1351: 1299: 1278: 1271: 1253: 1220: 1187: 1180: 1157: 1145: 1118: 1091: 1064: 1031: 997: 995: 992: 991: 990: 985: 980: 970: 964: 957: 954: 756: 753: 748: 745: 739: 736: 730: 727: 708: 705: 703: 700: 687: 684: 676:Psychoanalytic 648: 647: 632: 628: 617: 601: 598: 592: 589: 524: 521: 520: 519: 512: 503: 502: 499: 490: 489: 486: 483: 480: 477: 470: 467: 456: 446: 445: 442: 439: 436: 432: 412: 409: 407: 404: 377: 376: 373: 370: 363: 362: 359: 356:astasia-abasia 352: 345: 339: 338:or convulsions 333: 330: 323: 316: 313: 236: 233: 126: 125: 108: 104: 103: 97: 91: 90: 49: 43: 42: 33: 27: 26: 18: 15: 9: 6: 4: 3: 2: 4337: 4326: 4323: 4321: 4318: 4316: 4313: 4312: 4310: 4291: 4288: 4286: 4283: 4281: 4278: 4276: 4273: 4272: 4269: 4262: 4258: 4244: 4241: 4240: 4238: 4234: 4228: 4225: 4223: 4220: 4218: 4215: 4213: 4210: 4209: 4207: 4205:Schizophrenia 4203: 4197: 4194: 4192: 4189: 4187: 4184: 4183: 4181: 4176: 4172: 4166: 4163: 4161: 4158: 4157: 4155: 4151: 4147: 4143: 4139: 4135: 4134:Schizophrenia 4130: 4126: 4116: 4113: 4111: 4108: 4106: 4103: 4101: 4098: 4096: 4093: 4091: 4088: 4086: 4085:Drug overdose 4083: 4082: 4079: 4074: 4070: 4065: 4061: 4047: 4044: 4042: 4039: 4038: 4036: 4034: 4033:Sexual desire 4030: 4024: 4021: 4019: 4016: 4015: 4013: 4011: 4007: 3999: 3996: 3994: 3991: 3989: 3986: 3985: 3984: 3981: 3979: 3976: 3974: 3971: 3970: 3968: 3966: 3961: 3955: 3952: 3950: 3947: 3945: 3942: 3940: 3937: 3936: 3934: 3932: 3928: 3924: 3917: 3913: 3899: 3896: 3894: 3891: 3889: 3886: 3884: 3881: 3879: 3876: 3874: 3871: 3867: 3864: 3862: 3859: 3857: 3854: 3853: 3852: 3849: 3847: 3844: 3843: 3841: 3839: 3835: 3829: 3826: 3824: 3821: 3819: 3816: 3814: 3811: 3810: 3808: 3806: 3802: 3790: 3787: 3785: 3782: 3781: 3780: 3777: 3775: 3772: 3770: 3767: 3765: 3762: 3760: 3757: 3756: 3754: 3750: 3742: 3739: 3738: 3737: 3734: 3730: 3727: 3725: 3722: 3721: 3720: 3719:Social phobia 3717: 3715: 3712: 3710: 3707: 3705: 3702: 3701: 3699: 3697: 3693: 3690: 3688: 3684: 3677: 3674: 3673: 3671: 3669: 3665: 3661: 3657: 3654:-related and 3653: 3649: 3644: 3640: 3626: 3623: 3621: 3618: 3616: 3613: 3612: 3610: 3606: 3600: 3597: 3595: 3592: 3590: 3587: 3585: 3582: 3580: 3577: 3575: 3572: 3570: 3567: 3565: 3562: 3560: 3557: 3555: 3552: 3550: 3547: 3546: 3544: 3542: 3538: 3532: 3529: 3527: 3524: 3522: 3519: 3517: 3514: 3512: 3509: 3508: 3506: 3504: 3500: 3496: 3489: 3485: 3475: 3472: 3468: 3465: 3463: 3460: 3458: 3455: 3453: 3450: 3448: 3445: 3444: 3443: 3440: 3436: 3433: 3431: 3428: 3426: 3423: 3421: 3418: 3417: 3416: 3413: 3412: 3409: 3404: 3399: 3395: 3381: 3378: 3376: 3373: 3372: 3370: 3367: 3360: 3352: 3349: 3348: 3347: 3344: 3343: 3341: 3339: 3335: 3327: 3324: 3323: 3322: 3319: 3315: 3312: 3310: 3307: 3306: 3305: 3302: 3298: 3295: 3293: 3290: 3288: 3285: 3284: 3282: 3278: 3275: 3274: 3273: 3270: 3266: 3263: 3262: 3261: 3258: 3254: 3251: 3250: 3249: 3246: 3244: 3241: 3240: 3238: 3236: 3232: 3228: 3224: 3219: 3215: 3201: 3198: 3196: 3193: 3191: 3188: 3186: 3183: 3181: 3178: 3176: 3173: 3171: 3168: 3166: 3163: 3159: 3156: 3155: 3154: 3151: 3150: 3148: 3144: 3138: 3135: 3133: 3130: 3128: 3125: 3123: 3120: 3116: 3113: 3111: 3108: 3107: 3106: 3103: 3101: 3098: 3097: 3095: 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Index

Specialty
Psychiatry
Neurology
Symptoms
Numbness
weakness
movement problems
non-epileptic seizures
tremor
fainting
trouble speaking
impaired hearing
vision
trouble swallowing
Risk factors
stress
Cognitive behavioral therapy
medication
physical
occupational therapy
functional disorder
psychological stress
neurological
numbness
blindness
paralysis
convulsions
organic cause
psychological trigger
depression

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